Shearing-machine for profile-iron cutting.



No. 690,083. Patented Dec. 3|, I90I.

H. STOLPE. N

SHEARINE MACHINE FOR PROFILE IRON CUTTING.

(Application filed Feb. 23, 1901.) (No Model.) 2 Sheets-Sheet l.

null/4 lllll- A No. 690,083 Patented Doc. 3|, |90L H. STOLPE.

SHEARING MACHINE FOR PROFILE IRON CUTTING.

v (AppIication filed Feb. 23,1901. (No Model.) 2 Sheets-Sheet 2.

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HUGO STOLPE, OF POSEN, GERMANY.

SHEARING-MACHINE FOR PROFILE-IRON CUTTING.

SPECIFICATION formingpart of Letters Patent N 0. 690,083, dated December 31, 1901.

Application filed February 23, 1901. Serial No. 28,631. (No model.)

To all whom. it may concern.-

Be it known that I, HUGO STOLPE, a subject of the Emperor of Germany, residing at 20 Wilhelmstrasse, Posen, German E1npire,have invented a new and Improved Shearing-Machine for Profile-Iron Cutting, of which the following is a specification.

The present invention consists of a new and improved shearing-machine for profile-iron cutting.

The invention proper consists of two knives provided with cut-away sections corresponding to the iron profile, and which knives rotate toward each other about the axis of the inserted profile-iron. It is only necessary to rotate the knives about forty-five degrees when it is desired to out square iron rods, whence the latter when drawn out break off smoothly at the tap of a hammer.

In the accompanying drawings, in which similar letters of reference refer throughout to similar parts, Figure 1 illustrates in side elevation a shearer embodying the present invention. Fig. 2 is a horizontal sectional View on the line AB of Fig. 1. Fig. 3 is a partial section on line C D of Fig. 1. Figs. 4 and 5 are plan and sectional views, respectively, of one kind or form of knives which may be employed. Fig. 6 represents a modification of Fig. 1 in the form of the frame and illustrates means forsimultaneously rotating both knives.

The new machine consists of a frame or standard a or a, (see Fig. 6,) on which a plate I) is mounted. Secured to said plate b is a second plate or spider, which is held in firm position by bolts d d. Spider c is centrally provided with a circular opening in which a cylindrical and rotatable knifechuck c is mounted. A square knife-plate It, provided with beveled corners, has a cylindrical boss which is gripped in the said chuck. Plate 1) serves to guide the knife h and also to carry the knife is. This knife may be arranged stationarily, as illustrated in Fig. 1, or may be constructed so as to simultaneously rotate with knife h, as shown in Fig. 6. Knife 7c is also square formed with its corners beveled, similar to knife h. The end of knife-plate 70 forms a cylindrical shoulder Z, thereby providing an annular groove for receiving a flanged ring at, held in position on said plate b by thumb-screws n. The screws pass through suitable slots and can be easilyloosened when it is desired to remove or adjust the knife is. The knives are provided with cut-away sections corresponding to the profile of the iron to be cut.

Connected with the knife-chuck e aforesaid is a short lover or arm g, to the outer end of which is pinioned the one end of two pitmen or connecting rods 25, whose upper ends are pivotally connected with a nut s, mounted on a screw-threaded spindle 1'. Said spindle is mounted at its lower end between the plate I) and spider c aforesaid and carries on its upper end a drive-wheel q. 'Two links 19, also connected with said nut at one end, are

secured at their other ends to a projection 0 on plate I), thereby serving to hold said spindle in proper position. It is obvious that as the nut is screwed up or down on the spindie the latter, governed by said link 19, will swing within certain limits about its mounting-point. For this reason the adjoining spider o is cut away so as to allow such movement. (See dotted lines in Fig. 1.) The op eration of the shearer is obvious. When, for example, a square-shaped iron rod is inserted within the knives, the wheel (1 is revolved and the arm g necessarily depressed while the knives are forced into the iron. By reversing the wheel the iron is withdrawn, and when tapped falls apart at the point of cutting.

In Figs. 4: and 5 modified forms of knives are shown, provided with I-shaped cut-away sections. In this construction steel knifeplates o are provided, which can be easily and quickly replaced. As before mentioned, the machine may be so arranged that one knife rot-ates or both. In Fig. 6 such a latter construction is illustrated, which embraces the identical feature of invention as hereinbefore described. Here the machine is shown assembled horizontally instead of vertically, as in Fig. 1. The frame a has suitable boxes for carrying the spindle b, on one end of which latter is mounted a hand-wheel, as shown in Fig. 1, or a crank-wheel, as seen in Fig. 6. A nut is carried on spindle b, and to which are pivotally secured the adjacent ends of two pairs of arms or pitmen Z l, which at their opposite ends engage with levers or arms e f, corresponding to arm g described, and which arms are respectively connected with the knife-plates, (shown in dotted lines.) In this instance plate I) is replaced by two plates 01, (but one shown,) which two plates are screwed against each other by bolts in the same manner as above, as shown, and mounted in the frame a, as will be seen from Fig. 6, each carrying their respective rotatable knifeplate. By rotating the crank or wheel the arms 6' f assume the positions indicated by the dotted lines, the coacting parts relatively moving-in union therewith in order to sever the iron. In order to facilitate the insertion and withdrawal of the profile-iron, suitable guide-rollers n may be employed (shown in Fig. 6 and omitted from Fig. 1 for sake of clearness) and which may be mounted inany desired manner in correct positionas, for instance, on bracket-irons m.

Having now describedthe invention, what I claim as new, and desire to protect by Letters Patent, is

A shearing or cutting machine for profileiron comprising a frame, two rotatable knifeplates'mounted therein adjacent to each other and provided with suitable cut-away sections, and adapted to receive through their centers a piece of iron rod and to rotate when cut ting about the same, a screw-threaded spin dle mounted in said frame so that its axis is in line with the center of said cut-away sections, a nut on said spindle, arms in connection with said knife-plates, pitmen connecting said nut and said arms and means for easily and quickly rotating said spindle, sub

stantially as described.

HUGO STOLPE.

Witnesses:

HENRY HASPER, WOLDEMAR HAUPT. 

